A practical date calculation.
Use this calculator to estimate working dates in a project, delivery, review, staffing, or reporting window. Basic mode gives a standard Monday-through-Friday count. Advanced mode is useful when one of the available alternative workweek patterns is a better fit or when you need to remove specific dates manually.
- Counting Monday-to-Friday dates in a project or notice period.
- Comparing calendar days with scheduled working days.
- Removing known closure, leave, or holiday dates manually in Advanced mode.
Calculation method.
Working days = dates in the inclusive range whose weekday is active, minus manually excluded active dates in Advanced modeThe calculator walks from the earlier date through the later date, including both endpoints. Basic mode treats Monday through Friday as active. Advanced mode uses the selected workweek preset and removes dates you enter in the excluded-dates field when those dates would otherwise be active. Reversing the start and end dates does not change the range.
How to use it.
- Enter the two dates that define the range; either chronological order is accepted.
- Use Basic mode for a Monday-through-Friday schedule.
- Use Advanced mode if an available workweek preset fits better, and enter any known dates to exclude in YYYY-MM-DD format.
- Verify official holiday and deadline rules separately when the result affects payroll, contracts, filing, or legal obligations.
Worked examples.
Two full standard workweeks
Basic mode; Monday, August 3 through Friday, August 14, 2026
Result: 10 working days
Both weekday endpoints count, while the intervening Saturdays and Sundays do not.
Weekend-only standard range
Basic mode; Saturday, August 8 through Sunday, August 9, 2026
Result: 0 working days
Neither date is active under the Monday-through-Friday Basic schedule.
Manual excluded date
Advanced Monday–Friday; September 1 through September 30, 2026; exclude 2026-09-21
Result: 21 working days
September 2026 contains 22 Monday-to-Friday dates; the manually excluded active date reduces the count by one.
What the calculation assumes.
- Both endpoints are included when they are active working weekdays.
- Basic mode uses Monday through Friday.
- Advanced mode only uses the workweek presets offered by the calculator.
- Excluded dates are supplied manually; FigureNest does not automatically load a national, regional, company, bank, or market holiday calendar.
- Dates are whole calendar dates without shifts, hours, or time-zone cutoffs.
Checks before relying on the result.
- Assuming public holidays are detected automatically.
- Entering an excluded date in a format other than YYYY-MM-DD.
- Expecting an exclusive range that automatically omits the start or end date.
- Choosing a preset that does not match the actual work schedule.
- Using a simple day count where a payroll, contract, or legal rule defines business days differently.
Special cases.
Reversed dates
Entering the later date first produces the same count for the same inclusive calendar range.
Same active date
A one-date range counts as one when that weekday is active and the date is not manually excluded.
Same non-working date
A one-date range counts as zero when that weekday is not active under the selected schedule.
Excluded non-working date
Excluding a date that is already outside the selected working weekdays does not reduce the count again.
What to keep in mind.
This is a schedule-based workday counter, not a jurisdiction-aware business-day or legal-deadline engine. It does not automatically know public holidays, company closures, leave, bank or market calendars. It also does not model partial workdays, shifts, cutoff times, service rules, payroll rounding, or jurisdiction-specific deadline conventions.
Questions people ask.
Are the start and end dates included?
Yes. Each endpoint counts when it is an active working weekday and, in Advanced mode, has not been manually excluded.
Does FigureNest automatically exclude public holidays?
No. Advanced mode lets you enter known dates to exclude manually, but the calculator does not automatically load a holiday calendar for a country or region.
Can I change the working week?
Yes in Advanced mode. Choose one of the workweek presets offered by the calculator. Basic mode remains Monday through Friday.
What happens if I enter the dates in reverse order?
The calculator uses the earlier and later dates, so the count is the same in either order.
Does a single working date count as one?
Yes. The range is inclusive, so one active, non-excluded date counts as one working day.
Is this suitable for legal or contractual deadlines?
Use it only as a preliminary count. Official rules can use specific holiday calendars, service rules, cutoff times, or exclusive counting conventions.
Why can this differ from payroll?
Payroll can depend on scheduled shifts, paid holidays, leave, partial days, company calendars, overtime rules, and rounding that a date counter does not model.
Continue your calculation.
Compare the full calendar duration — See years, months, weeks, total days, and optional inclusive counting for the same dates.
Calculate age on a specific date — Measure completed years, months, and days from a birth date.
Convert annual pay into weekly and hourly figures — Use a work schedule to compare salary across common pay periods.